<h2>Full example</h2>
<pre><code>// Source: https://www.warp10.io/content/04_Tutorials/01_WarpScript/05_Best_Practices

//factorial macro. take a number on the stack, push its factorial
&lt;%
	'input' STORE
	1
	1 $input &lt;% * %> FOR
%> 'factorial' STORE

//build a map with key from 1 to 10 and value = key!
{} 'result' STORE

1 10
&lt;%
	'key' STORE
	$result $key @factorial $key PUT
	DROP //remove the map let by PUT
%> FOR

//push the result on the stack
$result</code></pre>
